Pith Number

pith:HDDKUMHE

pith:2017:HDDKUMHEL3DA7HKVEPQAEIQBIN

not attested not anchored not stored refs pending

Ages and structural and dynamical parameters of two globular clusters in the M81 group

2), (2) College of Astronomy, Chinese Academy of Sciences, Cuihua Du, Hu Zou, Jiali Wang, Jianghua Wu, Jundan Nie, Jun Ma (1, National Astronomical Observatories, Qirong Yuan ((1) Key Laboratory of Optical Astronomy, Song Wang, Space Sciences, Tianmeng Zhang, University of Chinese Academy of Sciences), Xiyang Peng, Xu Zhou, Zhenyu Wu, Zhiming Zhou

arxiv:1705.08587 v1 · 2017-05-24 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HDDKUMHEL3DA7HKVEPQAEIQBIN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:43:24.907997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38c6aa30e45ec60f9d5523e0022201435725daca5308534b225e403683185add

Aliases

arxiv: 1705.08587 · arxiv_version: 1705.08587v1 · doi: 10.48550/arxiv.1705.08587 · pith_short_12: HDDKUMHEL3DA · pith_short_16: HDDKUMHEL3DA7HKV · pith_short_8: HDDKUMHE

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HDDKUMHEL3DA7HKVEPQAEIQBIN \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 38c6aa30e45ec60f9d5523e0022201435725daca5308534b225e403683185add

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c8d9c39f79ba4c957c20bab4dbc81044607791739a1537e69ce218204d51206",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-05-24T02:34:12Z",
    "title_canon_sha256": "34e731e455f49e9ec38acaf10301e3ae54d8eaa0b9e7bc2902cda94e337e6e70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.08587",
    "kind": "arxiv",
    "version": 1
  }
}